"We will direct a thorough investigation in to all these issues. As and when the matter will arise, this court will order a CBI probe," a bench comprising justices G S Singhvi and V Gopala Gowda said. Additional Solicitor-General Paras Kuhat, appearing for the CBI, said "we will abide the directions of the court". The bench was told there were four cases in which the CBI could probe but in two it did not have jurisdiction and the concerned states had to look into the investigation. The bench said it would pass an order after hearing the stand of the Centre whether a CBI probe could be extended to those matters falling in the jurisdiction of the states. "Why did the concerned agency (income tax department) not act on the leaked conversations"? the bench said.